[08/10/12 - 07:11 AM]"Big Brother" Voting Results for August 9CBS details last night's eviction and Head of Household competition.

[via press release from CBS]

THIS JUST IN...

...from CBS Entertainment

JANELLE PIERZINA BLINDSIDED BY "BIG BROTHER" EVICTION

Frank Wins LIVE Head of Household Competition

Last night on BIG BROTHER, the Houseguests voted to evict Janelle Pierzina, the 32-year-old stay-at-home mom from Minneapolis, Minn., by a vote of 8-1. The eviction came as a shock to Janelle, as the majority of the Houseguests promised her safety during the week.

Following the eviction ceremony, the Houseguests competed in a LIVE "Big Brother Battle of the Bands" Head of Household competition where they answered questions related to previous HOH, Veto and Coaches competitions. Frank beat each Houseguest he faced off against, winning the HOH title for the week.

BIG BROTHER follows a group of people living together in a house outfitted with more than 52 cameras and 95 microphones recording their every move, 24 hours a day. Each week, the Houseguests will vote someone out of the house. At the end, the last remaining Houseguest will receive the grand prize of $500,000.

BIG BROTHER is executive produced by Emmy Award-winning producer Allison Grodner and Rich Meehan for Fly on the Wall Entertainment, in association with Endemol U.S.A.